Bottom Line

Avalanchedanger is LOW for all elevations and aspects. Small wind slabs exist in a variety of locations near and above treeline with human triggering unlikely. Look for and identify isolated areas of potential instability.

SW storm winds followed by gale force NE winds have once again created a mix of firm scoured snow surfaces interspersed with areas of recently formed wind slab on a variety of aspects near and above treeline. Winds shifted back to the SW last night, but are expected to move only minor amounts of snow during the strongest gusts. Difficult to trigger hard wind slabs will remain today on a variety of aspects near and above treeline. Potential avalanche size is expected at D1 to D1.5.

Consequences of a small human triggeredavalanche could be magnified substantially if a person is carried into rocks or trees, over a cliff, or into a terrain trap. Use the equipment and travel techniques associated with normal caution to help minimize consequences if caught in an avalanche.

* Newly formed wind slabs were observed yesterday near and above treeline in the Donner Summit, Mount Rose, and Carson Pass areas. Sensitivity to triggers ranged from unreactive to stubborn.

* Significant wind effects were noted in some areas below treeline.

* On a regional scale, the greatest snow coverage exists above 8,000' along the Mount Rose Hwy and in Sierra Crest locations north of Emerald Bay. Overall less snow cover exists south of Emerald Bay, but is generally usable above 8,500'.

Weather and CURRENT CONDITIONS

weather summary

High level cloud cover and moderate speed SW winds are expected today and tomorrow as weather systems pass by to the NE of the forecast area. Air temperature inversion conditions are in place with morning low air temperatures in the teens to 20s on the mountain valley floors and in the low to upper 30s at the mid and upper elevations on surrounding peaks. Warming at the mid and upper elevations is forecast for today and tomorrow with maximum daytime air temperatures above 7,000' reaching into the 40s for many locations.

Weather observations from along the Sierra Crest between 8200 ft. and 8800 ft.

Two-Day Mountain Weather Forecast Produced in partnership with the Reno NWS

For 7000 ft. to 8000 ft.

Friday

Friday Night

Saturday

Weather:

Partly cloudy skies.

Mostly cloudy skies.

Mostly cloudy skies.

Temperatures:

39 to 44 deg. F.

24 to 29 deg. F.

41 to 46 deg. F.

Mid Slope Winds:

W

W

W

Wind Speed:

10 to 15 mph with gusts to 30 mph.

10 to 15 mph.

Light winds increasing to 10 to 15 mph with gusts to 30 mph in the afternoon.

Expected snowfall:

0

0

0

For 8000 ft. to 9000 ft.

Friday

Friday Night

Saturday

Weather:

Partly cloudy skies.

Mostly cloudy skies.

Mostly cloudy skies.

Temperatures:

35 to 40 deg. F.

26 to 31 deg. F.

38 to 43 deg. F.

Ridge Top Winds:

W

W

NW

Wind Speed:

10 to 15 mph with gusts to 45 mph.

15 to 25 mph with gusts to 50 mph.

20 to 30 mph with gusts to 50 mph.

Expected snowfall:

0

0

0

Disclaimer

This avalanche advisory is provided through a partnership between the Tahoe National Forest and the Sierra Avalanche Center. This advisory covers the Central Sierra Nevada Mountains between Yuba Pass on the north and Ebbetts Pass on the south. Click here for a map of the forecast area. This advisory applies only to backcountry areas outside established ski area boundaries. This advisory describes general avalanche conditions and local variations always occur. This advisory expires 24 hours after the posted time unless otherwise noted. The information in this advisory is provided by the USDA Forest Service who is solely responsible for its content.

For a recorded version of the Avalanche Advisory call (530) 587-3558 x258

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This website is owned and maintained by the non-profit arm of the Sierra Avalanche Center. Some of the content is updated by the USDA avalanche forecasters including the forecasts and some observational data. The USDA is not responsible for any advertising, fund-raising events/information, or sponsorship information, or other content not related to the forecasts and the data pertaining to the forecasts.